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REVENUES (Tables)
 6 Months Ended
Jun. 30, 2021
Revenue from Contract with Customer [Abstract]  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Our remaining performance obligations primarily consist of the fixed consideration contained in our contracts. As of June 30, 2021, our total remaining performance obligation was $5.6 billion, of which we expect to recognize 6% for the remainder of 2021 and 11% in 2022.
Contract with Customer, Asset and Liability condensed consolidated balance sheets (in millions):
June 30, 2021December 31, 2020
Unbilled receivables$27 $23 
Deferred revenue$19 $17